WWW

Duration: 1 min

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Inside: a video lesson and guided study material.

Module outline

  1. About the course: About the Course
  2. General Knowledge: Polity, Physics, Biology, State Wise GK, Chemistry, History, Geography, GK- Current Affairs, Indian Economy, Static General Knowledge, Environment, Evolution of Indian Banking (Banking & Financial Awareness)
  3. Mental Aptitude and Reasoning: Ratio and Proportion (Ratios), Divisibility Rules, Data Interpretation, Permutation and Combination, Number System, Sequence and Series (Series), Speed Time and Distance, Series (Number and Letter Series) (Numerical Relations and Reasoning), Coding Decoding, Data Sufficiency, Non Verbal Reasoning (Spatial Aptitude) (Spatial Reasoning) (Visual Reasoning), Vocabulary, Profit and Loss, Arithmetic, Mental Ability, Percentage, Algebra, Mensuration and Geometry, Age Problems, Clock, Calendar, Verbal Analogy (Word Based Analogy), Deductive and Inductive Reasoning (Logical Deduction and Induction) (Prepositional Reasoning), Analogy, Analytical Reasoning (Counting Figures Reasoning), Puzzle Solving (Puzzles), Selection Decision Table (Decision Making), Cubes & Dices, Blood Relations, Venn Diagram, Logical Sequence Of Words, Inequality, Directions (Direction Test), Data Arrangement, Facts, Inference and Judgements, Syllogisms, Seating Arrangements, Ranking, Order and Sequence
  4. CS | Computer Fundamentals: Basics of COA, Number System, Number Representation, C Fundamentals, Algorithm Analysis, Input Output Organisation
  5. CS | Database Management System: Basics of DBMS, ER Diagram, Relational Model & Functional Dependencies, Keys & Integrity Constraints, SQL
  6. CS | Workplace productivity Tools: MS Office Applications, Keyboard Shortcuts
  7. CS | Computer Networks: Introduction to CN, Data Communication, Data Link Layer - Ethernet, Net Layer: IPv4 & Proto, Net Layer: IP Addressing, Transport Layer Services, Application Layer, Hardware Basics, Network Security
  8. CS | The Internet: Website, Browser & Services, Internet Fundamentals, Web Design & Development, Web Publishing & Hosting, Server Side & Security, Emerging Technologies
  9. CS | Emerging Technologies: Artificial Intelligence, Emerging Tech Trends, Introduction to OS, Windows OS, Linux OS, Unix OS, JavaScript-Basics
  10. CS | Boolean algebra: Digital Systems & Boolean Basics, Boolean Expression, Boolean Minimization, Logic Gates & Hardware
  11. CS | Data Structures: Introduction to DS, Array, Stack, Queue
  12. CS | Cryptography: Society, Law & Ethics, Cyber Threats and Malware Attacks, Role of Internet and Web Services, Security in Mobile and Wireless Computing, Electronic Data Interchange and E-Commerce, Physical Security and Cryptography Basics, Intrusion Detection Systems (IDS), Cyber Safety and Security
  13. UP Police Previous Year Papers:
  14. UP Police Full Mock Tests:
AI summary & chapters

AI Summary

An AI-generated summary of this video lecture.

This educational segment provides a foundational overview of the World Wide Web (WWW). It begins by clarifying the distinction between the Web and the Internet, attributing the invention to Tim Berners-Lee in 1989 at CERN. The lecture defines the Web as a universe of network-accessible information and a system of interlinked documents. It concludes by visualizing the operational flow through a client-server diagram, highlighting the exchange of requests and HTML files.

Chapters

  1. 0:00 – 1:07 00:00-01:07

    The instructor presents a slide titled 'World Wide Web (known as 'WWW', 'Web' or 'W3')'. Text states Tim Berners-Lee invented it in 1989 at CERN in Geneva, noting 'The World Wide Web is not synonymous with the Internet.' The slide defines the Web as 'the universe of network-accessible information' and a 'system of interlinked documents.' The instructor underlines 'global collection of documents' and writes 'hyperlink' and 'comm'. The view shifts to a 'www operation diagram' showing a 'Web browser (Client)' sending a 'Request for web page' through the 'internet' to a 'Web Server,' which responds with a 'Web Page HTML file.' The instructor writes 'Client - Server' above the diagram.

The lecture effectively bridges theoretical definitions with practical architecture. By first establishing the Web as a collection of linked resources distinct from the underlying Internet infrastructure, the instructor sets the stage for understanding web mechanics. The transition to the operation diagram solidifies this by illustrating the specific roles of the client (browser) and server in fetching and delivering content, demonstrating the fundamental request-response cycle that powers web browsing.

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